On Tuesday, 3 January 2017 14:23:45 GMT Terry Coles wrote: > My previous request for a loan of a powered Hub took me a step closer to > resolving my problem (thanks David). The problem is that although I think > I know now what is causing the problem, I don't know what it is doing to > the machine. > > So when I plugged David's Hub in, instead of the 'Naked' Hub, I got exactly > the same symptoms as I got with my own Hub. So, the 'Naked' Hub isn't the > cause and neither is the supplied PSU Brick. > > After lots of testing, using different combinations of devices plugged into > the Hub, I have arrived at the conclusion that the Audio Adaptors are the > problem:
Not in fact the problem, see : http://forum.modmypi.com/technical-support/usb-audio-adaptors-pi-locking-up-when-booting-t1041.html#p4482 It turns out that the problem seems to be that the Hub is connected via a USB port on the Pi (the only one in the case of the Zero). It looks like that port cannot handle the conflicts when all the Audio Adaptors shout at once. If I plug all the Adaptors directly into a Pi 2 or Pi 3 (even when I am using a hub for the other devices (mouse, keyboard, WiFI)), everything works. That means that I cannot use a £4 Pi Zero and must use a £30 Pi 3 (the Pi 2 is now £32). Unless.... Someone knows how to resolve the issue. (These devices are USB V1.1 and that means that the whole hub runs at V 1.1 speed). -- Terry Coles -- Next meeting: Bournemouth, Tuesday, 2017-02-07 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread: mailto:[email protected] / CHECK IF YOU'RE REPLYING Reporting bugs well: http://goo.gl/4Xue / TO THE LIST OR THE AUTHOR
